JP2013079954A5 - - Google Patents
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- JP2013079954A5 JP2013079954A5 JP2012215495A JP2012215495A JP2013079954A5 JP 2013079954 A5 JP2013079954 A5 JP 2013079954A5 JP 2012215495 A JP2012215495 A JP 2012215495A JP 2012215495 A JP2012215495 A JP 2012215495A JP 2013079954 A5 JP2013079954 A5 JP 2013079954A5
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- magnetic
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- magnetic layer
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- 230000005415 magnetization Effects 0.000 claims 7
- 229910018979 CoPt Inorganic materials 0.000 claims 1
- 239000000696 magnetic material Substances 0.000 claims 1
Claims (12)
前記センサスタックにバイアス磁場を提供するための前記センサスタックの前記後縁に隣接して配置された磁気バイアス構造であって、前記センサスタックの近傍に、前記センサスタックの前記第１および第２の横方向に逆向きの側面に整列し、且つ張出し部を有する第１の側面および第２の側面を有するネック部を含む磁気バイアス構造と、
を含む、磁気センサ。 A sensor stack comprising a first magnetic layer and a second magnetic layer, and a non-magnetic layer sandwiched between the first magnetic layer and the second magnetic layer, before being disposed on the air bearing surface A sensor stack having an edge, a trailing edge disposed opposite the leading edge, and first and second laterally opposite sides each extending from the leading edge to the trailing edge;
Wherein a magnetic bias structure located adjacent to the trailing edge of the sensor stack for providing a bias magnetic field to the sensor stack, the in the vicinity of the sensor stack, the first contact and the second of the sensor stack A magnetic bias structure including a neck portion having a first side surface and a second side surface aligned with laterally opposite side surfaces of the first side surface and a projecting portion ;
Including magnetic sensor.
前記第１の磁気層および第２の磁気層が、前記第１の磁化方向および第２の磁化方向が互いに逆平行に向く傾向があるように逆平行に結合されていて、
前記バイアス磁場が、前記第１の磁気層および第２の磁気層の磁化方向から、前記エアベアリング面に平行でない方向に偏向する、請求項１に記載の磁気センサ。 Each of the first magnetic layer and the second magnetic layer has a magnetic anisotropy oriented in a direction parallel to the air bearing surface;
The first magnetic layer and the second magnetic layer are coupled antiparallel such that the first magnetization direction and the second magnetization direction tend to be antiparallel to each other;
The magnetic sensor according to claim 1, wherein the bias magnetic field is deflected from the magnetization directions of the first magnetic layer and the second magnetic layer in a direction that is not parallel to the air bearing surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/251,100 US8907666B2 (en) | 2011-09-30 | 2011-09-30 | Magnetic bias structure for magnetoresistive sensor having a scissor structure |
| US13/251,100 | 2011-09-30 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2013079954A JP2013079954A (en) | 2013-05-02 |
| JP2013079954A5 true JP2013079954A5 (en) | 2015-11-05 |
| JP5914283B2 JP5914283B2 (en) | 2016-05-11 |
Family
ID=47991959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012215495A Active JP5914283B2 (en) | 2011-09-30 | 2012-09-28 | Magnetic bias structure of magnetoresistive sensor with scissors structure |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US8907666B2 (en) |
| JP (1) | JP5914283B2 (en) |
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| US8760822B1 (en) | 2012-11-28 | 2014-06-24 | Western Digital (Fremont), Llc | Method and system for providing a read transducer having an extended pinned layer and soft magnetic bias structures with improved stability |
| US20150002961A1 (en) * | 2013-06-26 | 2015-01-01 | HGST Netherlands B.V. | Scissor magnetic sensor having a back edge soft magnetic bias structure |
| US9318130B1 (en) | 2013-07-02 | 2016-04-19 | Western Digital (Fremont), Llc | Method to fabricate tunneling magnetic recording heads with extended pinned layer |
| US9214172B2 (en) | 2013-10-23 | 2015-12-15 | Western Digital (Fremont), Llc | Method of manufacturing a magnetic read head |
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| US9513349B2 (en) * | 2014-02-06 | 2016-12-06 | HGST Netherlands B.V. | Scissor type magnetic sensor with high magnetic moment bias structure for reduced signal asymmetry |
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| US9147404B1 (en) | 2015-03-31 | 2015-09-29 | Western Digital (Fremont), Llc | Method and system for providing a read transducer having a dual free layer |
| US9378761B1 (en) | 2015-04-22 | 2016-06-28 | HGST Netherlands B.V. | System for adjusting bias of relative magnetizations of ferromagnetic layers in a magnetoresistive sensor |
| US9940955B2 (en) | 2015-12-01 | 2018-04-10 | Western Digital Technologies, Inc. | Tunnel magnetoresistance magnetic sensor with scissor sensor and multi-seed layer configuration |
| US10840001B2 (en) * | 2018-03-06 | 2020-11-17 | Allegro Microsystems, Llc | Magnetoresistance element with extended linear response to magnetic fields |
| CN109298455B (en) * | 2018-07-31 | 2020-08-07 | 中国地质大学（武汉） | Be applied to three-axis TMR magnetometer of unmanned aerial vehicle aviation magnetic survey platform |
| CN113884774B (en) * | 2021-08-30 | 2024-04-26 | 西安工程大学 | Device and method for continuously testing electromagnetic wave reflection performance of electromagnetic shielding clothing |
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-
2011
- 2011-09-30 US US13/251,100 patent/US8907666B2/en active Active
-
2012
- 2012-09-28 JP JP2012215495A patent/JP5914283B2/en active Active
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